AR050844A1 - METHODS AND APPLIANCES TO PROCESS A WAY OF ENTRY WAVE IN A COMMUNICATIONS SYSTEM - Google Patents

METHODS AND APPLIANCES TO PROCESS A WAY OF ENTRY WAVE IN A COMMUNICATIONS SYSTEM

Info

Publication number
AR050844A1
AR050844A1 ARP050103484A ARP050103484A AR050844A1 AR 050844 A1 AR050844 A1 AR 050844A1 AR P050103484 A ARP050103484 A AR P050103484A AR P050103484 A ARP050103484 A AR P050103484A AR 050844 A1 AR050844 A1 AR 050844A1
Authority
AR
Argentina
Prior art keywords
segment
time domain
frequency domain
carrier signal
generate
Prior art date
Application number
ARP050103484A
Other languages
Spanish (es)
Inventor
Dhananjay Ashok Gore
Avaneesh Agrawal
Aamod Khandekar
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR050844A1 publication Critical patent/AR050844A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0008Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2626Arrangements specific to the transmitter only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/2605Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607Cyclic extensions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Abstract

Para transmitir una senal de multiples portadores, un transmisor provee símbolos cero para subbandas de guarda, lleva a cabo la modulacion de OFDM, y filtra las muestras en el dominio del tiempo resultantes con un filtro de configuracion de pulsos. Para transmitir una senal de un solo portador, el transmisor particiona la senal de un solo portador en segmentos. Cada segmento contiene hasta que K muestras y es atenuado, en caso de necesidad, a la longitud de un símbolo de OFDM. Cada segmento atenuado se transforma del dominio del tiempo al dominio de la frecuencias para generar un correspondiente segmento en el dominio de las frecuencias con K símbolos. Para cada segmento en el dominio de las frecuencias, los símbolos correspondientes a las subbandas de guarda son puestos en cero. Cada segmento en el dominio de las frecuencias es seguidamente transformado desde el dominio de las frecuencias al dominio del tiempo para generar un correspondiente segmento en el dominio del tiempo. Puede haber o no un prefijo cíclico adjuntado a cada segmento en el dominio del tiempo. Cada segmento en el dominio del tiempo es filtrado con el mismo filtro de configuracion de pulsos para generar una forma de onda de salida para la senal de un solo portador.To transmit a multiple carrier signal, a transmitter provides zero symbols for guard subbands, performs OFDM modulation, and filters the resulting time domain samples with a pulse configuration filter. To transmit a single carrier signal, the transmitter divides the single carrier signal into segments. Each segment contains until K samples and is attenuated, if necessary, to the length of an OFDM symbol. Each attenuated segment is transformed from the time domain to the frequency domain to generate a corresponding segment in the frequency domain with K symbols. For each segment in the frequency domain, the symbols corresponding to the guard subbands are set to zero. Each segment in the frequency domain is then transformed from the frequency domain to the time domain to generate a corresponding segment in the time domain. There may or may not be a cyclic prefix attached to each segment in the time domain. Each segment in the time domain is filtered with the same pulse configuration filter to generate an output waveform for the single carrier signal.

ARP050103484A 2004-08-20 2005-08-19 METHODS AND APPLIANCES TO PROCESS A WAY OF ENTRY WAVE IN A COMMUNICATIONS SYSTEM AR050844A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60334604P 2004-08-20 2004-08-20
US11/022,537 US8484272B2 (en) 2004-08-20 2004-12-22 Unified pulse shaping for multi-carrier and single-carrier waveforms

Publications (1)

Publication Number Publication Date
AR050844A1 true AR050844A1 (en) 2006-11-29

Family

ID=35457284

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP050103484A AR050844A1 (en) 2004-08-20 2005-08-19 METHODS AND APPLIANCES TO PROCESS A WAY OF ENTRY WAVE IN A COMMUNICATIONS SYSTEM

Country Status (11)

Country Link
US (1) US8484272B2 (en)
EP (2) EP2252026B1 (en)
JP (1) JP5048493B2 (en)
KR (1) KR100881870B1 (en)
CN (1) CN101044734B (en)
AR (1) AR050844A1 (en)
CA (1) CA2577331C (en)
ES (2) ES2770353T3 (en)
HU (2) HUE048439T2 (en)
TW (2) TWI533648B (en)
WO (1) WO2006023705A1 (en)

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Also Published As

Publication number Publication date
KR100881870B1 (en) 2009-02-06
HUE048439T2 (en) 2020-07-28
CN101044734B (en) 2014-12-10
WO2006023705A1 (en) 2006-03-02
KR20070053760A (en) 2007-05-25
EP1782595A1 (en) 2007-05-09
CN101044734A (en) 2007-09-26
EP1782595B1 (en) 2019-11-06
TWI425797B (en) 2014-02-01
CA2577331A1 (en) 2006-03-02
TWI533648B (en) 2016-05-11
JP2008511208A (en) 2008-04-10
HUE047444T2 (en) 2020-04-28
US8484272B2 (en) 2013-07-09
TW201414249A (en) 2014-04-01
JP5048493B2 (en) 2012-10-17
EP2252026A2 (en) 2010-11-17
ES2770353T3 (en) 2020-07-01
US20060039273A1 (en) 2006-02-23
TW200629834A (en) 2006-08-16
EP2252026A3 (en) 2013-06-05
EP2252026B1 (en) 2020-01-15
CA2577331C (en) 2014-09-30
ES2784546T3 (en) 2020-09-28

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